Muscle Pectinate

The pectineus muscle (m. pectoralis) is one of the largest muscles of the human body. It is located in the front of the chest and consists of two parts: large and small, which are connected by tendons. The large muscle is located on the front surface of the chest, and the small muscle is located on its lateral surface.

The pectineus muscle is one of the most important muscles in the human body. It is responsible for many functions such as breathing, movement of the arms and shoulders, and is also involved in maintaining the balance of the body. In addition, it plays an important role in sports and physical fitness.

The pectineus major muscle has three heads: the clavicular, sternal and serratus anterior. It starts from the collarbone, sternum and cartilage of the first rib, and ends on the back of the humerus. The minor muscle starts from the medial border of the scapula, then passes down and back and ends on the anterior surface of the humerus and forearm.

The function of the pectineus major muscle is to flex, extend and rotate the shoulder. It is also responsible for raising the arm up and forward, as well as internally and externally rotating the shoulder. The pectineus minor muscle is responsible for moving the arm back and also assists the pectineus major muscle in performing these movements.

In addition, the pectineus muscle plays an important role in maintaining balance and stability of the body. It helps keep the body upright and prevents it from falling.

Overall, the pectineus muscle is a very important muscle in the human body and plays a key role in various functions such as breathing, arm and shoulder movements.